/* MetarParse Live — decoder page */

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --text-2: #475569;
  --text-3: #64748b;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --accent-soft: #dbeafe;
  --focus: #2563eb;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --ok: #15803d;
  --ok-soft: #dcfce7;

  --vfr: #16a34a;
  --mvfr: #2563eb;
  --ifr: #dc2626;
  --lifr: #c026d3;

  --t-station: #0f172a;
  --t-type: #64748b;
  --t-time: #7c3aed;
  --t-wind: #0369a1;
  --t-vis: #047857;
  --t-wx: #b45309;
  --t-cloud: #4f46e5;
  --t-temp: #be123c;
  --t-press: #0e7490;
  --t-trend: #9333ea;
  --t-rvr: #15803d;
  --t-rmk: #64748b;

  --radius: 12px;
  --shadow: 0 1px 2px rgb(15 23 42 / 0.06), 0 4px 16px rgb(15 23 42 / 0.05);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --surface: #111827;
    --surface-2: #1e293b;
    --border: #1e293b;
    --border-strong: #334155;
    --text: #e2e8f0;
    --text-2: #94a3b8;
    --text-3: #7c8aa0;
    --accent: #60a5fa;
    --accent-text: #0b1120;
    --accent-soft: #1e3a5f;
    --focus: #93c5fd;
    --danger: #f87171;
    --danger-soft: #3b1219;
    --ok: #4ade80;
    --ok-soft: #12301f;

    --vfr: #22c55e;
    --mvfr: #3b82f6;
    --ifr: #ef4444;
    --lifr: #d946ef;

    --t-station: #f8fafc;
    --t-type: #94a3b8;
    --t-time: #c4b5fd;
    --t-wind: #7dd3fc;
    --t-vis: #6ee7b7;
    --t-wx: #fcd34d;
    --t-cloud: #a5b4fc;
    --t-temp: #fda4af;
    --t-press: #67e8f9;
    --t-trend: #e9a8ff;
    --t-rvr: #86efac;
    --t-rmk: #94a3b8;

    --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 4px 16px rgb(0 0 0 / 0.25);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 var(--sans);
  overflow-x: hidden;
}

a {
  color: var(--accent);
}

code,
pre,
textarea,
.raw {
  font-family: var(--mono);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 8px;
}
.skip-link:focus {
  top: 8px;
}

/* ------------------------------------------------------------------ header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-mark {
  width: 30px;
  height: 30px;
  flex: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--text-2);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}
.site-nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}
.site-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--text);
}
.gh-link svg {
  width: 18px;
  height: 18px;
}

/* ------------------------------------------------------------------ layout */
.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.intro h1 {
  margin: 0 0 6px;
  font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.intro p {
  margin: 0 0 20px;
  color: var(--text-2);
  max-width: 62ch;
}

/* ------------------------------------------------------------------ input panel */
.input-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.input-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  margin-bottom: 8px;
}

.input-head label {
  font-weight: 600;
}

.hint {
  font-weight: 400;
  color: var(--text-3);
  font-size: 0.85rem;
  margin-left: 6px;
}

.py-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-2);
}
.py-status[data-state="ready"] {
  color: var(--ok);
}
.py-status[data-state="ready"] .spinner,
.py-status[data-state="error"] .spinner {
  display: none;
}
.py-status[data-state="ready"]::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok);
}
.py-status[data-state="error"] {
  color: var(--danger);
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: -2px;
}
.spinner.hidden {
  display: none;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation-duration: 2.4s;
  }
}

textarea {
  display: block;
  width: 100%;
  min-height: 120px;
  resize: vertical;
  padding: 12px 14px;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
}
textarea:focus-visible,
input:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
  border-color: transparent;
}

.toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  margin-top: 14px;
  align-items: start;
}

.toolbar-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
  margin-bottom: 6px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  font: inherit;
  font-size: 0.85rem;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.live-row {
  display: flex;
  gap: 6px;
}

.live input {
  width: 150px;
  font: inherit;
  font-family: var(--mono);
  font-size: 0.95rem;
  text-transform: uppercase;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
}
.live input::placeholder {
  text-transform: none;
  font-family: var(--sans);
  color: var(--text-3);
}

.live-msg {
  margin: 6px 0 0;
  min-height: 1.2em;
  font-size: 0.82rem;
  color: var(--text-2);
  max-width: 260px;
}
.live-msg[data-kind="error"] {
  color: var(--danger);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
}
.btn:hover {
  filter: brightness(1.08);
}
.btn svg {
  width: 16px;
  height: 16px;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  background: var(--surface-2);
  filter: none;
}
.btn-small {
  font-size: 0.78rem;
  padding: 3px 9px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.action-msg {
  font-size: 0.85rem;
  color: var(--ok);
}

/* ------------------------------------------------------------------ results */
.results {
  display: grid;
  gap: 16px;
  margin-top: 20px;
}

.empty-state {
  text-align: center;
  color: var(--text-3);
  padding: 28px 16px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  min-width: 0;
}
.card-pending {
  opacity: 0.85;
}
.card-error {
  border-color: var(--danger);
}

.card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
}

.card-title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  min-width: 0;
}

.card-title h3 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.station {
  font-family: var(--mono);
}

.rtype {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--text-3);
  vertical-align: middle;
}

.when {
  color: var(--text-2);
  font-size: 0.9rem;
}

.flag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--text-2);
}

.card-badges {
  display: flex;
  align-items: center;
  gap: 8px;
}

.clean,
.issue-count {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}
.clean {
  background: var(--ok-soft);
  color: var(--ok);
}
.issue-count {
  background: var(--danger-soft);
  color: var(--danger);
}

.cat {
  display: inline-block;
  min-width: 52px;
  text-align: center;
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: 6px;
  color: #fff;
}
.cat-vfr { background: var(--vfr); }
.cat-mvfr { background: var(--mvfr); }
.cat-ifr { background: var(--ifr); }
.cat-lifr { background: var(--lifr); }
.cat-none {
  background: transparent;
  color: var(--text-3);
  font-weight: 400;
}
.cat-sm {
  min-width: 0;
  font-size: 0.72rem;
  padding: 1px 6px;
}
@media (prefers-color-scheme: dark) {
  .cat:not(.cat-none) {
    color: #0b1120;
  }
}

.raw {
  margin: 12px 0;
  padding: 10px 12px;
  background: var(--surface-2);
  border-radius: 8px;
  font-size: 0.92rem;
  line-height: 1.8;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.tok {
  white-space: nowrap;
}
.t-station { color: var(--t-station); font-weight: 700; }
.t-type { color: var(--t-type); }
.t-time { color: var(--t-time); }
.t-wind { color: var(--t-wind); }
.t-vis { color: var(--t-vis); }
.t-wx { color: var(--t-wx); font-weight: 600; }
.t-cloud { color: var(--t-cloud); }
.t-temp { color: var(--t-temp); }
.t-press { color: var(--t-press); }
.t-trend { color: var(--t-trend); font-weight: 600; }
.t-rvr { color: var(--t-rvr); }
.t-rmk { color: var(--t-rmk); font-style: italic; }

.tok-issue {
  color: var(--danger);
  text-decoration: underline wavy var(--danger);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
  cursor: help;
}

/* tabs */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.tabs [role="tab"] {
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 7px 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  background: none;
  color: var(--text-2);
  cursor: pointer;
}
.tabs [role="tab"]:hover {
  color: var(--text);
}
.tabs [role="tab"][aria-selected="true"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.panel-note {
  margin: 0 0 8px;
  font-size: 0.82rem;
  color: var(--text-3);
}

/* key/value grid */
.kv {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0 24px;
  margin: 0;
}
.kv > div {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
}
.kv dt {
  color: var(--text-3);
  font-size: 0.85rem;
}
.kv dd {
  margin: 0;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.sub {
  margin: 18px 0 6px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
}
.sub code {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
  margin-left: 6px;
  overflow-wrap: anywhere;
}
.sub-warn {
  color: var(--danger);
}

.trends,
.issues {
  margin: 0;
  padding: 0;
  list-style: none;
}
.trends li,
.issues li {
  padding: 5px 0;
}
.issues code {
  color: var(--danger);
  font-weight: 600;
  margin-right: 6px;
}

.grp {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--surface-2);
  color: var(--t-trend);
  white-space: nowrap;
}
.grp-base {
  color: var(--text-2);
}

.more-note {
  text-align: center;
}

.muted {
  color: var(--text-3);
  margin: 0;
}

/* TAF table */
.table-wrap {
  margin-top: 14px;
  overflow-x: auto;
}

.taf-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.taf-table th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-3);
  font-weight: 600;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-strong);
}
.taf-table td {
  padding: 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.nw {
  white-space: nowrap;
}
.taf-table td.empty {
  color: var(--text-3);
}
.taf-table tbody tr:hover {
  background: var(--surface-2);
}

@media (max-width: 680px) {
  .taf-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
  }
  .taf-table,
  .taf-table tbody,
  .taf-table tr,
  .taf-table td {
    display: block;
  }
  .taf-table tr {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 10px;
    margin-bottom: 8px;
  }
  .taf-table td {
    display: grid;
    grid-template-columns: 84px 1fr;
    gap: 8px;
    padding: 3px 0;
    border: 0;
  }
  .taf-table td::before {
    content: attr(data-label);
    color: var(--text-3);
    font-size: 0.8rem;
  }
  .taf-table td.empty {
    display: none;
  }
}

/* code blocks */
.code-block {
  position: relative;
}
.code-block .btn-small {
  position: absolute;
  top: 8px;
  right: 8px;
}

.pre {
  margin: 0;
  padding: 12px 14px;
  background: var(--surface-2);
  border-radius: 8px;
  font-size: 0.82rem;
  line-height: 1.5;
  overflow: auto;
  max-height: 480px;
  white-space: pre;
}
.json {
  padding-top: 40px;
}

/* python snippet */
.code-panel {
  margin-top: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.code-panel h2 {
  margin: 0 0 4px;
  font-size: 1.15rem;
}
.code-panel p {
  margin: 0 0 12px;
  color: var(--text-2);
  font-size: 0.92rem;
}
.code-panel pre {
  margin: 0 0 10px;
  padding: 12px 70px 12px 14px;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  font-size: 0.85rem;
  overflow-x: auto;
}
@media (prefers-color-scheme: dark) {
  .code-panel pre {
    background: #020617;
  }
}

/* footer */
.site-footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 16px 40px;
  border-top: 1px solid var(--border);
  color: var(--text-3);
  font-size: 0.85rem;
}
.site-footer p {
  margin: 4px 0;
}
.site-footer strong {
  color: var(--text-2);
}

/* ------------------------------------------------------------------ small screens */
@media (max-width: 640px) {
  .gh-link span {
    display: none;
  }
  .brand {
    font-size: 0.98rem;
  }
  .toolbar {
    grid-template-columns: 1fr;
  }
  .live input {
    flex: 1;
    width: auto;
  }
  .live-msg {
    max-width: none;
  }
  .hint {
    display: block;
    margin-left: 0;
  }
  .kv > div {
    grid-template-columns: 100px 1fr;
  }
  .card-title h3 {
    font-size: 1.2rem;
  }
}